Liebert GXT2U - User Manual

Questions and Answers

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Daniel LawrenceSep 23, 2025
What does it mean when the Fault indicator LED and diagnostic LEDs A and C are illuminated on a Liebert UPS?
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  Darlene LeeSep 23, 2025
  If the Fault indicator LED and diagnostic LEDs A and C are illuminated on your Liebert UPS, it means that the UPS failed the battery test.
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Michael HoganAug 25, 2025
What to do if my Liebert GXT2U has reduced battery time?
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  stanleyjonesAug 25, 2025
  If your Liebert UPS is showing reduced battery time, there could be several reasons. First, the batteries might not be fully charged; keep the UPS plugged in continuously for at least 24 hours to recharge them. Second, the UPS might be overloaded; check the load level display and reduce the load. Finally, the batteries may be old and unable to hold a full charge, in which case they will need to be replaced.
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brownanthonyAug 25, 2025
Why is the battery indicator LED illuminated on my Liebert UPS?
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  Christopher WarrenAug 26, 2025
  The battery indicator LED on your Liebert UPS might be illuminated for a few reasons. It could mean the UPS is operating from battery mode because it's not securely plugged into the wall receptacle. Alternatively, the UPS input protection fuse might have blown, in which case you should save your data, close applications, replace the fuse, and restart the UPS. Finally, the utility voltage might be out of the UPS input range, so ensure the utility supply voltage is within acceptable limits.
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Benjamin LongAug 27, 2025
Why does my Liebert GXT2U UPS have reduced battery time?
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  thomasreidAug 27, 2025
  There are several reasons why your Liebert UPS might have reduced battery time: * The batteries may not be fully charged. Keep the UPS plugged in continuously for at least 24 hours to recharge the batteries. * The UPS could be overloaded. Check the load level display and reduce the load on the UPS. * The batteries may be old and unable to hold a full charge. In this case, replace the batteries.
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Scott AlexanderSep 23, 2025
What does it mean if Fault and Bypass indicator LEDs and diagnostic LED C and E are illuminated on Liebert GXT2U UPS?
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  Kristen OconnorSep 23, 2025
  If the Fault and Bypass indicator LEDs and diagnostic LED C and E are illuminated on your Liebert UPS, it means that the UPS shut down due to a command from the communications port(s). Your UPS has received a signal or command from the attached computer. If this was inadvertent, ensure the communication cable used is correct for your system.
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brittany14Sep 12, 2025
What does it mean when the fault and bypass indicator LEDs and diagnostic LED B are illuminated on my Liebert UPS?
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  Lori MorseSep 12, 2025
  If the Fault and Bypass indicator LEDs and diagnostic LED B are illuminated on your Liebert UPS, it means the UPS has an internal DC bus overvoltage. UPS requires service.
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Katherine MillerSep 10, 2025
What does it mean when the fault indicator LED and diagnostic LED A and C are illuminated on my Liebert GXT2U UPS?
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  Keith McculloughSep 12, 2025
  If the Fault indicator LED and diagnostic LEDs A and C are illuminated on your Liebert UPS, it means the UPS failed the battery test.
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Paige BatesSep 12, 2025
What does it mean when the fault and bypass indicator LEDs and diagnostic LED C and E are illuminated on my Liebert GXT2U?
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  briannajohnsonSep 12, 2025
  If the Fault and Bypass indicator LEDs and diagnostic LEDs C and E are illuminated on your Liebert UPS, it indicates that the UPS shut down due to a command from the communications port(s). The UPS has received a signal or command from the attached computer. If this was inadvertent, ensure the communication cable used is correct for your system.
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Laura NelsonSep 3, 2025
What to do if my Liebert GXT2U fails to start when the ON button is pressed?
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  Courtney RoseSep 4, 2025
  If your Liebert UPS fails to start when you press the ON button, it might be short-circuited or overloaded. Ensure the UPS is OFF, disconnect all loads, and make sure nothing is lodged in the output receptacles. Also, check that the loads are not defective or shorted internally.
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Steven DavisSep 1, 2025
What does it mean if the Fault and Bypass indicator LEDs and diagnostic LED D are illuminated on my Liebert GXT2U UPS?
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  Todd GarciaSep 1, 2025
  If the Fault and Bypass indicator LEDs and diagnostic LED D are illuminated on your Liebert UPS, it indicates a UPS PFC (Power Factor Correction Circuit) fault. The UPS requires service.